TPS2HB35-Q1: Current limit accuracy

Jiawei Hu1

Part Number: TPS2HB35-Q1

Tool/software:

Hi team,

My customer BYD use TPS2HB35-Q1 and ILIM2 resistor is 14k, which means current limit is 3.8A. But in the real test, the current limit is 5A. Could you kindly help check it's normal? If it's abnormal, what we need to check? Thanks!

Jiawei

1 month ago

0 Patrick Shalton 1 month ago

TI__Mastermind 31050 points

Hi Jiawei,

Can you send a waveform of this with VBB, VOUT, and IOUT? What are they using to short the output?

Thanks,

Patrick

0 Jiawei Hu1 1 month ago in reply to Patrick Shalton

TI__Expert 5785 points

Hi Patrick,

Thanks for your reply!

Attached is the screenshot of VOUT and IOUT, pls help check. BYD using CC source for the output. Can you give your directions? Thanks!

Jiawei

0 Patrick Shalton 1 month ago in reply to Jiawei Hu1

TI__Mastermind 31050 points

Hi Jiawei,

It looks like there is some interference that the CC eLoad is causing, since the waveform shows that IOUT gets as low as -4A. Could the customer test with a discrete resistor or actual load instead?

Thanks,

Patrick

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TPS2HB35-Q1: Current limit accuracy